Angelic acid
From Wikipedia, the free encyclopedia
| Angelic acid | |
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| Systematic name | (Z)-2-methylbut-2-enoic acid |
| Other names | |
| Chemical formula | C5H8O2 |
| Molecular mass | 100.116 g/mol |
| Density | x.xxx g/cm3 |
| Melting point | 45.5°C |
| Boiling point | 185°C |
| CAS number | 565-63-9 |
| SMILES | CC=C(C)C(=O)O |
| Disclaimer and references | |
Angelic acid is a monocarboxylic unsaturated organic acid. It is found in garden angelica (Angelica archangelica), umbelliferae, and many other plants. It was also isolated from the defensive secretion of certain carabid beetles.
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[edit] Properties and uses
Angelic acid has a double bond between the second and third carbons of the chain. Together with tiglic acid form a pair of cis-trans isomers. Angelic acid is a volatile body, of biting acid taste and pungent sour odour. It crystallizes in colorless monoclinic prisms. Angelic acid was formerly used therapeutically as a sedative.
[edit] Name and discovery
Angelic acid gets its name from the plant garden angelica (Angelica archangelica) from whose roots it was first obtained in 1842 by L. A. Buchner.
[edit] References
[edit] Note
- ↑ L. A. Buchner L. Justus Liebigs Ann Chem. 1842;42:226.
